| Technology Explained |
| Line/Load Regulation |
| Analog: |
Older Hipot testers consisted of a variable transformer and a high voltage transformer used to adjust the output to the specified test voltage.
Although effective, this method isn’t ideal. Voltage variations on the input
side of the transformer can cause the output to fluctuate. Meanwhile, the
output voltage can also sag or spike depending on the load applied across the
tester. |
| Digital: |
New Slaughter Hipot testers maintain the output voltage to within 1% from no
load to full load over the complete line voltage range. Thus test operators can be
sure that they will get consistent results.
|
| Output Shorting |
| Analog: |
Older Hipot testers didn’t employ any output shorting device. Thus when the
tester was turned off, the voltage applied across the device under test (DUT)
would take a long time to discharge creating a shock hazard for any test
operator or passerby within arm’s reach of the test area. |
| Digital: |
New Slaughter Hipot testers include a high speed output shorting device
which discharges a DUT in less than 400 ms. This safety feature allows test
operators to test multiple products more quickly without risk of injury.
|
| Programmable Memory |
| Analog: |
Older Hipot testers used simple analog meters to indicate test voltage and with few instruments equipped with leakage current meters, adjustable potentiometers were used to adjust leakage current trip points. |
| Digital: |
New Slaughter Hipot testers use an internal microprocessor and digital technology much like a computer. Test operators can adjust a variety of settings all with the push of a button. Further, the tester can then store this information, allowing test operators to create several different test procedures and recall them depending on the DUT being tested.
|
| Remote Control Ability |
| Analog: |
Older Hipot testers were limited because the operator needed to be close to the tester to be able to adjust the test voltage and manually start and stop the test. This put the test operators in harm’s way in order to perform a test. |
| Digital: |
New Slaughter Hipot testers include remote control capability through programmable logic control (PLC). This allows test operators to activate the instrument and perform the test from a remote location or to automate the testing process, both limiting exposure to dangerous voltage and current levels.
|
| User Security |
| Analog: |
Older testers used rotary knobs and toggle switches to adjust and set parameter levels. These settings could easily be changed or switched in between or during a test causing erroneous results and danger to the DUT. |
| Digital: |
New Slaughter Hipot testers include a security feature that allows a system administrator to lock-out the front panel. This prevents any non-authorized user from altering test parameters.
|
| Multiple Output Frequencies |
| Analog: |
Older testers simply consisted of a high voltage transformer that stepped the output voltage up or down. The output frequency was identical to the input frequency and could not be changed. |
| Digital: |
New Slaughter Hipot testers have selectable output frequency settings. 50 Hz and 60 Hz signals may be chosen depending upon if products need to be shipped to Europe or within the United States.
|
| No-Load Setup |
| Analog: |
Older testers required operators to adjust the voltage and current settings while the output was on or hot. This created a dangerous condition for test operators since they could only alter test settings when high voltage was present at the test leads. |
| Digital: |
New Slaughter Hipot testers allow operators to adjust all test parameters with no high voltage present at the output terminals. This creates a safe environment for operators and bystanders.
|
| Accurate Digital Metering |
| Analog: |
Older testers used slow analog meters to display voltage and current levels (some older testers didn’t even include leakage current meters!). Analog meters often required extended time to settle on a specific value and led to inaccurate test results. Further, depending on whether the meter was placed in the primary or secondary side of the output transformer, erroneous values could be displayed if the output was loaded down. |
| Digital: |
New Slaughter Hipot testers use accurate digital metering systems that provide the test operator with a clear numerical value in real time. Current and voltage displays are constantly updated throughout the duration of the test so that the test operator can record accurate test results.
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| More Information |
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For more information on how the latest Slaughter Company technology can work for
your application, please email us or call at 1-800-504-0055. |